> > Given slub is now lockless, validate_slab_slab() is probably very wrong> > these days.>> OK "slabinfo -v" is useless then. But that doesn't invalidate the BUGs> that I saw during boot. They happend before I could even run slabinfo> for the first time.

Correct. Also the use of debugging disables the use of cmpxchg_double()but not this_cpu_cmpxchg() use. See cmpxchg_double_slab() andkmem_cache_open()s determination of the __CMPXCHG_DOUBLE flag.